Sifter



(N0 Model.) r2 Sheets-Sheet 1.

G. H. FOUNTAIN.

SIPTBR. y No. 399,862. Patented Mar. 1 9, 1889.

-A TTUHIVEYS.

N. PETERS Phowlithngmpher, washmgmn, D; A:4

Warren @rares Partnr rrrcn..

GEORGE Il. FOUNTAIN, OF PLAINFIELD, NEV JERSEY.

SIFTER.

SPECIFICATION forming part of Letters Patent No. 399,862, dated March 19, 1889.

Application filed July 3l, 1888.

To @ZZ whom it may concern:

lie it known that I, GEORGE Il. FOUNTAIN, of Plainfield, in the county of Union and State of New Jersey, have invented a new and Improved Sitter, of which the following is a full, clear, and exact description.

My invention relates to an improvement in sitters, and has for its object to provide a sitter of simple, durable, economical, and convenient construction; and a further object ot' the invention is to provide a sitter with a perforated or ret-iculated drum having an automatically-closing door; and the 'further object of the said invention is to provide a sifter with means whereby a chute or slide may be expeditiously constructed to carry oit' the sifted products when desired.

M y invention consists in certain novel features ot coi'istrnction and peculiar combination ot' parts, as will be hereinafter Yt'ully described, and particularly pointed out in the claims.

Reference is to be had to the accomlianyin g drawings, forming a part-of this speciication, in which similar iigures of reference indicate corresponding parts in all the views.

Figure 1 is a perspective view ot' the sitter, illustrating one side as partly broken away and the slide or chute constructed in the same. Fig. 2 is a central vertical section oi' the sitter in position for operation. Fig. 3 is a perspective view oi the drum. Fig. is a side elevation of the drum-spindle; and Fig. 5 .is a vertical sect-ion ot' the sitter, taken on the line 5 5, Fig. 1.

In carrying out the invention the iran'ie 10 of the sitter is preferably rectangular in contour and provided with a hinged or detachable top, .11. In the `it'ront side of the frame below the center a door, 12, is hinged adapted to open inward, which door is of a width essentially equal to the width of the said front side. Then the door is closed, it is secured by a button or catch ot' any approved form; or the said button and catch may be dispensed with and the door be held closed by friction only. Then the said door is open or folded inward, it is held at an upward inclination, through the medium of a block, 13, attached to the inner sides ot the frame, as best illustrated in Fig. 1.

Serial No. 281,518. (No model.)

In the rear side ofV the frame, or that side opposite to the one to which the door 12 is hinged, a second door, 14, is provided, of equal width with the door 12,the said door 14 being hinged at the upper edge, while the door 12 is hinged at the lower edge. The purpose of this construction is, by the connection of the two doors, to provide a slide or chute bridging the frame at or about the center, which is accomplished by opening the door 12 inward, as aforesaid, and then carrying the rear door, 14, also inward to a contact with the under surface of the door 12. By pressing upward upon the door le the door 12 is raised from the block 13 and the door 11 permitted to pass above the said door 12, whereupon the rear door,1et, is permitted to fall and rest upon the inner edge of the forward door, as best illustrated in Fig. 1. Thus a slide or chute is provided having an inclination from .the rear to the forward side of the frame, the

door 12 being supported upon the block and the door 14 upon the said door 12.

The drum 15 is preferably made rectangular in cross-section, consisting of two ends, 1G, and sides of perforated or reticulated materialsuch as woven wi re-the said perforated or reticulated material being securely fastened to the sides in any suitable or approved manner. One side oi the drum is provided with an opening extending entirely across said side, which is closed by a lid, 17, constructed of a material similar to that consti-- tuting the sides of the drum. The said lid 17 is provided with a longitudinal rod at its outer end, the ends of which are pivoted in the ends 16 16 of the drum, as best shown in Figs. and 5. By reason of the lid 17 being pivoted in the drum, as aforesaid, when the side containing the opening covered by said lid is brought uppermost, when said drum is revolved in the direction shown by arrow, Fig. 5,the lid will assume aperpendicular posit-ion, exposing said opening, so that the material to be sitted may be readily placed in the drum. When, however, the said lidded side of the drum is brought to a perpendicular position, the lid will automatically fall down, assuming an equivalent position, thereby closing the opening and preventing the egress of the material.

IOO

The lid 17 is pret'erably made of less length than the length of the drum, and in order that the material to be sifted-cinders, for instancemay notclog the lid by iilling the space intervening the ends of the saine and the ends of the drum a shield, 18, is attached to the edge of the ends 1G of the drum, adjacent to the side containing the lid, which shield is adapted to project beyond the inner face of the ends 16, and consists, preferably, of a strap of metal, as best shown in Fig.

In the ends of the drum' 15 aligning rectangular apertures 18 are produced, which apertures are adapted to receive a rectangular spindle, 19, which spindle, passing longitudinally through the drum, is made to extend outward from either end and into rectangular apertures 20, formed in opposite sides of the sitter-frame, as best shown in Fig. 1.

In order that the drum when journaled in the sitter-frame may be revolved, the surface of the spindle 19 adjacent to the ends is concaved at 2l, as best shown in Fig. 4. hen it is desired to revolve the drinn for the purpose of sifting, the spindlel), which is provided with a suitable crank, 22, is pushed back or pulled forward, as the case may be, until the cylindrical or concaved surface 21 of the spindle is brought to a bearing in the frame of the sitter, as illustrated in Fig. 2. lVhen it is intended to locate the drinn to `receive the material to be si'fted, the spindle is pushed inward or drawn outward until the rectangular portion thereof has entered the rectangular openings or apertures 20 in the frame.

In operation, the rectangular portion of the spindle being entered in the apertures 20 of the frame and that side ot the drum having the lid being uppermost, the top 11 of the sitter-frame is removed and the material t0 be sifted placed in the drum. The spindle is now slid endwise and turned so as to bring the same into the position shown in FiO. 2. The drum or sieve proper is then revolved (through the medium of the crank 22) in the direction shown by the arrow, Fig. 5. As the drum is turned, the lid will fall to close the feed-opening in the said drum, as shown by the dotted lines in Fig. 5, and will be held closed by the contents of the sieve. lVhen the contents of the said drum shall have been properlysifted, the doors 12 and 14: are brought down to the position illustrated in Fig. 1, forming a slide or chute to discharge the sifted material, when emptied thereon, to the outside of the frame. The drum is then revolved in the opposite direction until the lid 17 uncovers the opening. The sifted material will then pass out of the drinn onto the chute or slide, as will be readily understood from the drawings.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination, with a drum adapted to be rotated and a door pivoted in said drum opening inward, of a shield extending from the sides of the drum inward over the dooropening, substantially as described, whereby material within the drum is prevented clogging the door, as set forth.

2. The combination, with the sitter-frame and a drinn provided with a door pivoted in one.

side opening inward and closing by gravity., said door adapted to be held closed by the material when the drinn is turned in one direction and to swing inward and open the feed-opening when turned in the opposite direction, of a door hinged near the lower front end of the sifter-frame,`a similar ldoor hinged near the upper rear end of the frame, and inclined blocks or stops attached to the inner wall of said frame, said doors adapted to swing inward and said front door adapted to engage the blocks and the rear door to engage the inner upper end of the front door when opened inward, thereby forming a chute or slide, substantially 'as and tor the purposes specified.

GEORGE I1. FOUN'IAI'N.

lVitnesses: v

J.- F. ACKER, Jr., EDGAR TATE.

from 

